5. Solve the following Gas Law Problems. Be sure to include which law applies in the solution.
a) A gas has a volume of 100 ml when the pressure is 735 mm. What volume will the gas occupy at 700 mm?

b) Change the following temperatures to Kelvin scale:
1) 20 C

2) 85 C

3) - 15 C

4) - 190 C

c) Given 90 ml of Hydrogen gas collected with the temperature is 27 degrees C. What volume will the Hydrogen occupy at 42 C?

d) A gas measures 500 ml at a temperature of -23 C. Find its volume at 23 C.

e)

Question

5.	Solve the following Gas Law Problems.  Be sure to include which law applies in the solution.
a)  A gas has a volume of 100 ml when the pressure is 735 mm.  What volume will the gas occupy at 700 mm?


             b)   Change the following temperatures to Kelvin scale:
1)	20 C

2)	85 C

3)	- 15 C

4)	- 190 C 
 
             
c)	Given 90 ml of Hydrogen gas collected with the temperature is 27 degrees C. What volume will the Hydrogen occupy at 42 C?

                  d)   A gas measures 500 ml at a temperature of -23 C.  Find its volume at 23 C.


                   e)

rogue · Answer

5a. You can use boyle's law to find the new volume (V2), everything else is given.Also, by mm, the question probably means mmHg (milimeters of Mercury; this is the same thing as torr.
$$P_1 V_1 = P_2 V_2 \rightarrow \frac {P_1}{V_2} = \frac {P2}{V_1}$$5b. Just use the conversion formula for Celsius to Kelvin. $$k = C + 273.15$$So for example, 0 C would be 273.15 k or 100 C would be 373.15 k.
5c. Use Charles's law to find T2.$$V_1 T_2 = V_2 T_1 \rightarrow \frac {V_1}{T_1} = \frac {V_2}{T_2}$$5d. Use Charles's law to find V2.